Third Party Library Installation

Next, change into the directory where GEOS was unpacked, run the configure script and attempt to run the make script

$ ./configure
$ make

If make fails, I think it's due to gcc 4.3.0 not liking the includes for some of the files. You can download the latest svn drop (3.1.0) and that should compile OR you can make the changes in the 3.0.0 source code by following the diff's on this page: ​http://bugs.gentoo.org/attachment.cgi?id=149838&action=view (i.e. add the lines starting with a '+' and remove the lines starting with a '-' from the respective file)